We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy.
Unfortunately, activation email could not send to your email. Please try again.

How to compare text in two PDF documents

Syncfusion Essential PDF is a .NET PDF library used to create, read, and edit PDF document. Using this library, you can compare the text in two PDF documents by text extraction. The resultant PDF document highlight the entire line of changed text.

Steps to compare the text in PDF documents programmatically:

  1. Create a new Windows Forms application project.


  1. Install the Syncfusion.Pdf.Base NuGet package as reference to your .NET Framework application from NuGet.org.



  1. Include the following namespace in the Form1.Designer.cs file.


  1. Add a new button in Form1.Designer.cs to compare the PDF files as follows.


  1. Add the following code in ComparePDF to compare text in two PDF documents.


A complete working sample can be downloaded from PDFComparisonSample.zip.

By executing the program, you will get the PDF document as follows.


Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.


Article ID: Published Date: Last Revised Date: Platform: Control:
9237 09/03/2018 09/04/2018 Windows Forms PDF
Did you find this information helpful?
Add Comment
You must log in to leave a comment

You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.